Lu Hao's resume: Do you know the principles of search engine optimization? How does SEO work?

Many friends want to know what search engine optimization is, but due to professional issues, many contents cannot be understood at a glance. Today, the editor will tell you what search engine optimization is. The search engines commonly used are full-text search engines, with Google as the foreign representative and Baidu as the domestic search engine.

Do you know the principles of search engine optimization? How does SEO work?

The automatic information search function of the search engine is divided into two categories. One is basic search, that is, sometimes search engines will actively use "spider" to search Internet websites within a specific patent address range. Once the "search engine spider" finds a new website, it will automatically obtain the website information and website address and add them to its own database. Another method is to submit a website search, which means that the website user agrees to submit the website address of his website to the search engine. The search engine will send a "search engine spider" to your website within a certain period of time, then scan your website and store the relevant data in the database for users to search. Nowadays, search engine optimization algorithms have undergone great changes. After submitting a website, website users cannot ensure that their website will be included in the search engine database. In order to give search engines more opportunities to add our website to their database, we can add more links to our website.

When a customer searches for information containing keywords, the search engine will search the database. If a website that meets the user's requirements is found in the database, the search engine will use an algorithm to check the matching degree and position of the keywords, calculate the connection between the web page and the keywords and its ranking, and then return the link to the web page to the user.

The principle of website optimization mainly includes three steps. Crawl web pages, process web pages, and provide search services. Each individual search engine often has its own crawler technology. The crawler follows the web links of web pages, crawls from one website to another, and then continues to browse and crawl large numbers of web pages based on web link analysis.

The captured web page is called a web snapshot update. After the search engine captures the web page, it will do a lot of preparatory processing before it can provide search services. Among them, the most important thing is to obtain keywords, create database index database and database index. The customer enters a keyword to search, and the search engine searches the database index database for web pages that match the keyword.

SEO is a systematic website optimization work. In most cases, we need to have a better understanding of it in order to make good use of SEO and let the SEO system optimization give us a good return.